Light guide display assembly for providing increased pupil replication density
AssigneeMeta Platforms Technologies, LLC
InventorsBabak Amirsolaimani, Scott Charles McEldowney, Yun-Han Lee, Lu Lu
Life of this patent
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Abstract
A device includes a light guide and at least one in-coupling element configured to couple an image light into the light guide. The device also includes a first out-coupling element configured to couple a first portion of the image light out of the light guide as a plurality of first output lights. The device further includes a second out-coupling element spaced apart from the first out-coupling element by a distance and configured to couple a second portion the image light out of the light guide as a plurality of second output lights. The second output lights are substantially non-overlapping with the first output lights.
Claims20
A device, comprising:
- a light guide;
- at least one in-coupling element configured to couple an image light having a predetermined field of view (“FOV”) and representing a predetermined image content into the light guide;
- a first out-coupling element configured to couple a first portion of the image light out of the light guide as a plurality of first output lights;
- and
- a second out-coupling element spaced apart from the first out-coupling element by a distance and configured to couple a second portion of the image light out of the light guide as a plurality of second output lights, the plurality of second output lights being substantially non-overlapping with the plurality of first output lights,
- wherein the plurality of first output lights are associated with the same predetermined FOV and the same image content as the image light, and the plurality of second output lights are associated with the same predetermined FOV and the same image content as the image light.
A device comprising:
- a light guide;
- at least one in-coupling element configured to couple an image light into the light guide;
- a first out-coupling element configured to couple a first portion of the image light out of the light guide as a plurality of first output lights;
- and
- a second out-coupling element spaced apart from the first out-coupling element by a distance and configured to couple a second portion of the image light out of the light guide as a plurality of second output lights, the plurality of second output lights being substantially non-overlapping with the plurality of first output lights,
- wherein the first out-coupling element includes a first polarization selective element having a first polarization selectivity, and the second out-coupling element includes a second polarization selective element having a different, second polarization selectivity.
A method, comprising:
- coupling, by at least one in-coupling element, an image light into a light guide, the image light having a predetermined field of view (“FOV”) and representing a predetermined image content;
- coupling, by a first out-coupling element, a first portion of the image light out of the light guide as a plurality of first output lights, wherein the plurality of first output lights are associated with the same predetermined FOV and the same predetermined image content as the image light;
- and
- coupling, by a second out-coupling element spaced apart from the first out-coupling element by a distance, a second portion of the image light out of the light guide as a plurality of second output lights, the second output lights being substantially non-overlapping with the first output lights, wherein the plurality of second output lights are associated with the same predetermined FOV and the same predetermined image content as the image light.
Dependencies are inferred from the claim text.